JPH04126280A - Recorder - Google Patents

Abstract

PURPOSE:To reduce a residue in erasing by a method wherein a plurality of erasing means are used, and a suceeding erasing means is selectively executed on the basis of a processing result of every erasing means. CONSTITUTION:When a key input is conducted in the order of [CODE]+[X]+[ X]+[erasing target character] from a keyboard 130, a horizontal character erasing processing is executed. When a key input is conducted in the order of [CODE]+[Y]+[ X]+[erasing target character], a vertical character erasing processing is executed. For example, a vertical character erasing control part 160 drives a line feed motor 14 through a platen control part 180, rotates a platen 12 backward by one pulse from an initial stop position, and rotates the platen 12 to a position one pulse forward from the initial position. At this timing, an erasing ribbon 80 is payed out by a fixed amount through an erasing ribbon feed control part 200. Through a hammer impact control part 210, the position of an erasing target character is impacted three times by a hammer through the erasing ribbon 80 in synchronism with the backward and forward rotation of the platen 12.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a recording device such as a typewriter, and more particularly to a recording device in which characters can be erased, for example.

[Prior Art] Conventionally, to erase characters in an impact typewriter using a daisy wheel, the daisy wheel is rotated left and right by a certain angle while the platen and carriage are fixed, and the characters to be erased are erased using an erasing ribbon. A known method was to strike the ball multiple times (usually three times) with a hammer in the same place. Another known method is to rotate the platen up and down at a fixed angle while keeping the daisy wheel fixed, and then use an erasing ribbon to strike the characters multiple times (usually three times) with a hammer at the location of the characters to be erased.

[Problems to be Solved by the Invention] However, each of the above conventional examples has the following drawbacks. First, the method of erasing characters by rotating the daisy wheel is effective for removing leftovers in the horizontal direction, but it is effective against positional deviations in the vertical direction due to the precision of the typewriter and the slippage between the platen and paper. There is no effect on the remaining amount of elimination. Furthermore, the method of erasing characters by rotating the platen is effective in the vertical direction, contrary to the method of rotating the daisy wheel, but it leaves unerased characters in the horizontal direction. Furthermore, if a combination of these two methods is used, the amount of unerased data can be improved, but there are disadvantages in that the erasing speed is reduced, the amount of erasing ribbon consumed is increased, and the operating cost is high.

The present invention has been made in view of the above-mentioned conventional example, and an object of the present invention is to provide a typewriter capable of erasing characters, which reduces the amount of erased residue and reduces the erasing speed (improving the amount of erasing ribbon consumed). shall be.

[Means for Solving the Problems] In order to achieve the above object, the recording device of the present invention has the following configuration. That is, in a recording device capable of recording on a recording medium and erasing characters etc. recorded on the recording medium, the recording device includes: a conveying means for conveying the recording medium; a recording means for recording on the recording medium; a first erasing unit that performs an erasing operation multiple times according to a recording direction of a recording unit and a direction opposite to the recording direction; and a second erasing unit that carries out an erasing operation multiple times by transporting the recording medium by a predetermined amount by the transporting unit. means and said first
A recording apparatus is provided, comprising an erasing means and an instruction means for instructing the second erasing means to perform an erasing operation.

According to another invention, there is provided a recording apparatus capable of recording on a recording medium and erasing characters recorded on the recording medium, including a conveying means for conveying the recording medium, and a conveying means for conveying the recording medium; The erasing operation is executed a plurality of times according to the recording means to be performed, the recording direction of the recording means and the direction opposite to the recording direction, and the erasing operation is executed a plurality of times by conveying the recording medium by a predetermined amount by the conveying means. A recording apparatus is provided, comprising an erasing means and an instruction means for instructing the erasing means to perform an erasing operation.

[Operation] With the above configuration, the present invention uses a plurality of erasing means, and one
Based on the processing result number of each erasing means, the subsequent erasing means are selectively executed.

According to another aspect of the invention, the erasing operation is performed along the recording direction of the recording device of the recording device, the conveying direction of the conveying device of the recording device, and the counter.

[Embodiment] A preferred embodiment 1 of the present invention will be described in detail below in consideration of the accompanying drawings. FIG. 1 is a block diagram showing the structure of a character erasable typewriter which is a typical embodiment of the present invention. In FIG. 1, in the I/X, 100 is a CPU, and 110 is an RO in which a control program for character erasing processing is stored.
M, 120 is a RAM for registering and storing automatic deletion patterns;
Number 130 is the keyboard, 140 is the input control I10.15
0 & ma cpU bus, 160 is a vertical character deletion control unit,
170 is a horizontal character deletion control section.

FIG. 2 is an external view of the typewriter of this embodiment. Second
In the figure, 1 is a printer, 3 is a display, 4 is a recording material, 5 is a platen knob, 6a is an ink ribbon for recording, 6 is an ink ribbon cassette storing the ink ribbon 6a, 12 is a platen, and 75 is a daisy chain. A wheel, 80 an erasing ribbon, and 130 a keyboard.

In such a typewriter, when keys are manually pressed in the order of [C0DE] + [X] + [c-X] + [character to be erased] from the keyboard 130, the horizontal character erasing process described below is executed. . Also, [C0DE]
When keystrokes are performed in the order of + [Y] + [mxl + [character to be erased], vertical character erasing processing, which will be described later, is executed. Here, each character in [] is the keyboard number 1.
30, respectively.

In the typewriter having the above configuration, the character erasing process of this embodiment will be explained using the flowchart shown in FIG. In particular, we will consider the case where M (capital letter M) has already been typed and is to be erased.

First, in step SIO, the first key operation is performed on the keyboard 13.
0 to [C0DE] + [X] + [#X] + [M]
When you enter , the instruction is input control l10140, CP
It is transmitted to the CPU 100 via the U bus 150.

Subsequently, in step S20, the CPU 100 issues a character deletion command to the horizontal character deletion control section 170. In response to this, the horizontal character erasing control section 170
When the wheel motor 70 is rotated via the wheel control section 190, the daisy wheel 75 is rotated by a certain angle left and right, and then the erase ribbon 80 is moved to a predetermined position via the ribbon shift control section 220 by a known ribbon shift mechanism. At this timing, the erasing ribbon 80 is sent out by a certain amount from the erasing ribbon feeding section 90 via the erasing ribbon feeding control section 200, and then the erasing ribbon is used via the hammer keying control section 210 to strike a hammer at the location of the character to be erased. Press the key three times (once each on the left and right sides and once at the initial stop position) in synchronization with the rotation of the daisy wheel 75. Note that during the horizontal character erasing operation described above, the platen 12 remains fixed.

Continuing (In step S30, if the user visually determines that there is something left to erase and wants to erase it again, the process goes to step S4.
0, and when it is determined that there is no need for re-erasing processing, the erasing processing is ended. Perform the second key operation. Step S40
Then, the user selects an erasing method. If the user wants to perform the horizontal character erasing operation again, the process goes to steps S70 and S.
80, and repeats the same operations as performed in S10 and S20. On the other hand, if you wish to perform a vertical character erasing operation, the process proceeds to step S50, perform the second key operation on the keyboard 130, and press [C0DE]. + [Y]
Enter + [#X] + [M]. When this keyboard input is transmitted to the CPU 100 via the input control l10140% CPU bus 150, in step S60, the CPU
U100 issues a character deletion command to the vertical character deletion control section 160 to execute vertical character deletion processing.

In response to this, the vertical character erasing control unit 160 drives the line feed motor 14 via the platen control unit 180 to move the platen 12 one step toward the front row from the initial stop position.
It is rotated by a pulse (0.26 mm in this example), and further rotated from the initial stop position to a position of 1 pulse (0.26 am in this example) on the trailing side. Also, at this timing, the erasing ribbon 80 is fed out by a certain amount via the erasing ribbon feeding control section 200, and further, the erasing ribbon 80 is fed out by a certain amount via the erasing ribbon feeding control section 200, and the hammer keying control section 2
Using the erasing ribbon 80 via 10, the location of the character to be erased is struck with a hammer three times (once each in the front and back and once at the initial stop position) in synchronization with the forward and backward rotation of the platen 12.

Note that during the above vertical character erasing operation, the daisy wheel 75 remains fixed.

As described above, in this embodiment, a horizontal character erasing operation is executed, and based on the result of the erasing operation, the next effective erasing operation is selected from either the horizontal character erasing operation or the vertical character erasing operation.

Therefore, if this embodiment is followed, the advantages of the horizontal character erasing method and the vertical character erasing method can be combined, and the execution of the next erasing operation can be controlled based on the result of the first erasing operation, so that the erasing ribbon can be efficiently used. can be used.

Further, in step S30 and step S40, pressure is automatically detected by using a concentration detection sensor, etc., and step S8
0 or may proceed to step S60.

[Other Examples] Here, the case of automatic deletion will be explained.

Before using the character deletion processing function, the user must
The erase pattern is registered in 20. For example, the key-in operation for erasing characters explained in the above embodiment, cco'D
E] + [X] + [0=X] + [Character to be erased],
[C0DE] + [Y] + [6=X] + [Character to be erased], and the above two combinations are represented by one key manual, [#X]. By performing such registration (for example, keying in EφX after M (capital letter M) has already been typed in), the horizontal character erasing pattern is called from the RAM 120 and executed by the CPU 100.
Then, the series of horizontal character erasing processes described in the previous embodiment are executed. Following this, again [#X]
When you key in, the vertical character erasing pattern will be displayed in RAM.
120 and is transmitted to the CPU 100 to execute a series of vertical character erasing processes described in the previous embodiment.

Also, as an erase pattern [C0DE] + [X] + [
#X] + [Character to be erased], [C0DE] + [Y]
+ [mX] + [Character to be erased] (By this, it is also possible to sequentially execute horizontal character deletion and vertical character deletion by pressing the [#X] key from the beginning.

According to this embodiment, operability can be improved by representing a series of key-in operations for erasing processing with one key-in operation. Furthermore, it is also possible to select and register the optimal automatic erasing operation according to the situation, such as when using a recording material with poor erasability.

[Effects of the Invention] As explained above, according to the present invention, multiple erasing operations can be performed selectively and easily, thereby reducing consumption of erasing ribbon and efficiently performing erasing operations. It has the effect of being able to

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a typewriter capable of erasing characters, which is a typical embodiment of the present invention, FIG. 2 is an external view of the typewriter, and FIG. 3 is a flowchart showing character erasing control processing. be. In the figure, l...typewriter, 3...display,
4... Recording material, 5... Platen knob, 12...
Platen, 14... line feed motor, 70...
...Wheel motor, 75...Daisy wheel, 8
0... Erasing ribbon, 90... Erasing ribbon feeding section, 1
30...Keyboard, 160...Vertical direction character deletion control section, 170...Horizontal direction character deletion control section, 180
. . . platen control section, 190 . . . daisy wheel control section, 220 . . . ribbon shift control section. Patent applicant Canon Co., Ltd.

Claims (6)

[Claims] (1) A recording device capable of recording on a recording medium and erasing characters etc. recorded on the recording medium, comprising: a conveying means for conveying the recording medium; a recording means for recording on the recording medium; a first erasing unit that performs an erasing operation a plurality of times in accordance with the recording direction of the recording unit and a direction opposite to the recording direction; and a first erasing unit that carries the recording medium by a predetermined amount by the transporting unit and performs the erasing operation multiple times. A recording apparatus comprising: a second erasing means; and an instruction means for instructing the first erasing means and the second erasing means to perform an erasing operation. (2) After performing an erasing operation at the current position of the recording medium, the second erasing means transports the recording medium by a predetermined amount in the recording medium transporting direction by the transporting means to perform the erasing operation; 2. The recording apparatus according to claim 1, wherein the erasing operation is performed by transporting the recording medium by a predetermined amount in a direction opposite to the transport direction. (3) The instruction means includes storage means for storing a series of plural instructions instructing the first erasing means and the second erasing means to perform an erasing operation, and the series of plural instructions are stored in the storage means. 2. The recording apparatus according to claim 1, further comprising: a registration unit for registering a plurality of instructions; and an alternative instruction unit for substituting the series of a plurality of instructions. (4) A recording device capable of recording on a recording medium and erasing characters etc. recorded on the recording medium, comprising: a conveying means for conveying the recording medium; a recording means for recording on the recording medium; Erasing means for performing an erasing operation a plurality of times in accordance with a recording direction of the recording means and a direction opposite to the recording direction, and carrying the recording medium by a predetermined amount by the transporting means to perform the erasing operation a plurality of times; , instruction means for instructing the erasing means to perform an erasing operation. (5) The erasing means performs an erasing operation by carrying the recording medium by a predetermined amount in the recording medium carrying direction by the carrying means after carrying out an erasing operation at the current position of the recording medium;
5. The recording apparatus according to claim 4, wherein the recording medium is further conveyed by a predetermined amount in a direction opposite to the conveyance direction to execute the erasing operation. (6) The instruction means includes storage means for storing a series of plural instructions for instructing the erasing means to perform an erasing operation; and registration means for registering the series of plural instructions to be stored in the storage means; 5. The recording device according to claim 4, further comprising alternative instruction means for substituting a series of a plurality of instructions.